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NI-9757 O2 

2-Channel C Series Oxygen Sensor Interface Module

The National Instruments 9757 offers an interface for multiple wide-band and narrow-band exhaust oxygen sensors.

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NI-9757 Features 

The NI-9757 is a two-channel C Series Oxygen Sensor Interface Module designed to interface with both Bosch LSU 4.2 and LSU 4.9 wideband oxygen sensors. It also supports up to four narrowband differential oxygen sensors. This module allows users to measure air/fuel ratio (A/F), fuel/air ratio (F/A), Lambda, and Phi values, offering versatility across different fuel types like gasoline or diesel. It features a 12-bit resolution and an internal analog-to-digital conversion rate of 1000 samples per second. The NI-9757 operates with a power input range of 6 to 32V, making it compatible with automotive systems using a 12V battery

NI-9757-Oxygen Sensor Interface Module
 

About the NI-9757

The NI 9757 provides an interface for two Bosch LSU 4.2 or LSU 4.9 wideband exhaust oxygen sensors and four differential narrowband oxygen sensors. The NI 9757 device driver allows user calibration of stoichiometry versus pump current for a variety of fuel types (gasoline/diesel default). O2 measurements are reported as A/F, F/A, Lambda, and Phi. The NI 9757 has serviceable, fuse 10protected heater control circuits.

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NI-9757 User Guide 

The National Instruments 9757 offers an interface for multiple wide-band and narrow-band exhaust oxygen sensors.

 

Download the Guide

VP-NI-User-Guide-01.1
 

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